With the full support of Pope Innocent IV during the First Council of Lyon, King Louis IX of France accompanied by his brothers Charles d'Anjou and Robert d'Artois launched the Seventh Crusade against Egypt.
At the opening, June 28, after the singing of the Veni Creator, Spiritu, Innocent IV preached on the subject of the five wounds of the Church and compared them to his own five sorrows: (1) the poor behaviour of both clergy and laity; (2) the insolence of the Saracens who occupied the Holy Land; (3) the Great East-West Schism; (4) the cruelties of the Tatars in Hungary; and (5) the persecution of the Church by the Emperor Frederick.
Lyon | Second Vatican Council | World Boxing Council | United States National Research Council | National Research Council | Privy Council of the United Kingdom | British Council | Council of Trent | Council of Europe | National Security Council | Legislative Council | Privy Council of England | Greater London Council | Council on Foreign Relations | Lord President of the Council | United States National Security Council | Legislative Council of Hong Kong | City Council | World Council of Churches | William Lyon Mackenzie King | Council of Constance | United Nations Security Council | New York City Council | London County Council | Auckland Council | Her Majesty's Most Honourable Privy Council | United Nations Security Council resolution | Nathaniel Lyon | Medical Research Council (UK) | Council of Chalcedon |
After taking part in the First Council of Lyon in 1245, he left Ireland, as Pope Innocent IV needed him in Germany in his struggle against Emperor Frederick II.
Other achievements of Thomas II include the consecration of the high altar of the cathedral, attendance at the First Council of Lyon (1274), holding a diocesan synod in 1279 and the establishment of the St. Thomas Collegiate Church in Racibórz.